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70346 (1999 RO177)
Classification: Main-belt Asteroid          SPK-ID: 2070346
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1654434397793024 4.915e-08  
a 2.396210517053859 1.01e-08 au
q 1.999773206677128 1.1691e-07 au
i 4.588246921596948 4.6445e-06 deg
node 164.3287417461831 4.9708e-05 deg
peri 207.0404248652331 5.082e-05 deg
M 195.6208113702277 1.2502e-05 deg
tp 2459619.128912498643
(2022-Feb-08.62891250)
4.9375e-05 TDB
period 1354.833360329502
3.71
8.5658e-06
2.345e-08
d
yr
n .2657153348456421 1.68e-09 deg/d
Q 2.792647827430591 1.1771e-08 au
  Orbit Determination Parameters
   # obs. used (total)      806  
   data-arc span      8040 days (22.01 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56994  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 13:37:31  

Additional Information
 Earth MOID = 1.00065 au 
 Jupiter MOID = 2.67052 au 
 T_jup = 3.506 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO417314  

70346 (1999 RO177)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RO177 = 1998 HJ84 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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